Yealink SIP-T31G Administrator's Guide

Administrator’s Guide for SIP-T2 /T3 /T4 /T5 /CP920 IP Phones
401
Parameter
features.play_mute_tone.enable <y0000000000xx>.cfg
Description
It enables or disables the phone to play an audible tone when the mute status is changed.
Permitted
Values
0-Disabled
1-Enabled
Default
0
Supported
Devices
CP920
Parameter
features.play_mute_tone.interval <y0000000000xx>.cfg
Description
It configures time interval (in seconds) for playing an audible tone when the phone is in the mute state
during the call.
Permitted
Values
Integer from 3 to 3600
Default
5
Supported
Devices
CP920
Call Forward
You can forward calls from any line on your phone to a contact. There are two ways of forwarding your calls:
l Forward calls in special situations, such as when the phone is busy or there is no answer, or forwarding all
incoming calls to a contact immediately.
You can set the phone not to forward a call coming from authorized numbers.
l Manually forward an incoming call to a number.
Topics
Call Forward Settings Configuration
Call Forward Feature Configuration
Call Forward Synchronization for Server-side Configuration
Call Forward Settings Configuration
You can change the following call forward settings:
l Enable or disable the call forward feature. If disabled, the users have no permission to configure call forward on
their phone.
l Choose a call forward mode. You can configure call forward for all lines or specific lines.
l Allow or disallow users to forward an incoming call to an international telephone number (the prefix is 00).
l Enable or disable forward emergency feature and specify forward authorized numbers. These numbers will not
be forwarded when the call forward feature is enabled. The incoming call will not be logged in the Forwarded
Calls list.
l Enable or disable the display of the Diversion header. The Diversion header allows the phone which receives a
forwarded-call to indicate where the call was from.
The following table lists the parameters you can use to change the call forward settings.
Parameter
features.fwd.allow <y0000000000xx>.cfg
Description
It enables or disables the call forward feature.
Permitted
Values
0-Disabled, call forward feature is not available to the users.
1-Enabled

Yealink SIP-T31G Specifications

General

Mounting kit	Yes
Number of handles included	1 pc(s)
Display diagonal	2.3 \
Display resolution	132 x 64 pixels
Operating temperature (T-T)	-10 - 50 °C
Operating relative humidity (H-H)	10 - 95 %
Voice codecs	G.722, G.729, AGC, G.729A, AJB, PLC, G.711Mu, VAD, G.711a, G.723.1, G.726, iLBC, CNG, OPUS
AC adapter input voltage	100 - 240 V
AC adapter output current	0.6 A
AC adapter output voltage	5 V
Power consumption (typical)	3 W
Lines quantity	2 lines
Phonebook capacity	1000 entries
Number of VoIP accounts	2
Sustainability certificates	RoHS, REACH
Networking standards	IEEE 802.3af, IEEE 802.1p, IEEE 802.1Q, IEEE 802.1x
Ethernet LAN data rates	10, 100, 1000 Mbit/s
Ethernet LAN interface type	Gigabit Ethernet
Mounting	Desk/Wall
Handset type	Wired handset
Product type	IP Phone
Product color	Gray
Harmonized System (HS) code	85171800

Weight and Dimensions

Depth	189 mm
Width	188 mm
Height	162 mm
Package depth	210 mm
Package width	213 mm
Package height	103 mm